diff --git a/src/gui_qt/graphs/graphwindow.py b/src/gui_qt/graphs/graphwindow.py
index 7796b81..e3e19a8 100644
--- a/src/gui_qt/graphs/graphwindow.py
+++ b/src/gui_qt/graphs/graphwindow.py
@@ -75,6 +75,8 @@ class QGraphWindow(QtWidgets.QGraphicsView, Ui_GraphWindow):
         self.scene.contextMenu[0].disconnect()
         self.scene.contextMenu[0].triggered.connect(self.export_dialog)
 
+        self.bwbutton.toggled.connect(self.change_background)
+
     def _init_gui(self):
         self.setWindowTitle('Graph ' + str(next(QGraphWindow.counter)))
 
@@ -772,7 +774,6 @@ class QGraphWindow(QtWidgets.QGraphicsView, Ui_GraphWindow):
         if y is not None:
             self.plotItem.setLabel('left', y, **{'font-size': '10pt', 'color': self._fgcolor.name()})
 
-    @QtCore.pyqtSlot(bool, name='on_bwbutton_toggled')
     def change_background(self, _):
         temp = self._fgcolor, self._bgcolor
         self.set_color(foreground=self._prev_colors[0], background=self._prev_colors[1])